Improvement in colortropes



dtoitmttefet @stent @biblica `OSCAR NICHOLSON] OF NEW YORK, N. Y.

Letters Patent No. 108,170, dated October 11, 1870.

IMPROVEMENT IN coLoR'rRoPEs.

The Schedule referred to in these Letters Patent and making part .of the same.

l'o all whom 'it may concern 13e it known that I, OSCAR Nrcnonsox, of the city, county, and State of New York, have invented a new and useful Improvement in Golortrope; and I do herev `shall be so constructed that, by giving to it a rapid rotary motion, the colors of the diierent wheels or disks may 'blend together, producing beautiful combinations of' color; and l Y It consists in the toy, constructed as hereinafter more fully described.

A is the disk that forms the base or foundation of the toy.

The disk or wheel A is made of bookbinders board,

or other suitable material, that may have snicient strength to prevent the strings or cords from tearing ont, and sufficient weight to canse it to serve as a ily-wheel to give steadiness of motion tothe toy when revolving.

In' the middle part of the disk A, upon opposite sides of and at equal distances from the center of said disk, are formed two holes, through which is passed the cord B, the ends of which are brought together, and are secured by a knot, Or other convenient means.

In the center Ot the disk A is formed a third hole, through which is passed a second cord, C, upon one end oi' which is formed a knot, to prevent the said cord from being dra-wn through the said disk.

The other end ofthe cord O projects upon the lside of' the said disk opposite to the projecting ends ofthe cord B, as shown in fig. 1.

D 'are circular disks or wheels, made of 'a lighter material than the disk A, and with holes in their centers, through which the cord C is passed.

E are star-shaped or scolloped disks or wheels made with holes in their centers for the passage of the cord The .disks A I) E are all made of bright-colored papel', orare covered with bright-colored paper, or painted in bright clors, each being of-a different color, so. that by changing the order ot' said disks different combinations of colors may beproduced.

The holes through the disks or wheels A D E may have eyelets placed in them to diminish the friction upon the cord, and tO prevent the said disks from being worn by the said cords.

In using the toy the disks are turned around until the cords are twisted. Then, by alternately drawing upon and slaokening the cords, a rapid rotation will4 be given to tliedisks, producing numerous and beautiful changes and blendings of colors.4

It will be observed that the peculiar arrangement of the cords gives the necessary leverage to the cord B, in twisting and untwistdng, to give motion to the heavy base disk A, while the other disk ruiming loosely upon a sin-gie cord does not change the direction of their motion so quickly, or all at the same time, thus producing a mostbeant-if'ul kaleidoscopic change of colors. l

Having thus described my invention,

I claim as new and desire to secure by Letters Patcnt- 1. The arrangement of the t-wo cords B G with the base disk A of the toy, substantially as herein shown and described, and for the purpose set forth.

2. An improved toy or colortrope, formed bythe combination oi' the heavy disk A,'cords B O, and disks or wheelsl) E, with cach other, said disks or wheels and cords being constructed, arranged, and Operating substantially as herein shown and described, and for the purpose set forth.

The above specification of my invention signed by me this 20th day of August, 1870.

lVitnesses: OSCAR NICHOLSON.

GEORGE W. MABEE, JAMES T. GRAHAM. 

